[U-Boot] [PATCH v3] mx6: Add initial SPL support for HummingBoard-i2eX

[Fabio Estevam <festevam@gmail.com>]

From: Fabio Estevam <fabio.estevam@freescale.com>

Add the initial SPL support for HummingBoard-i2eX, which is based on a
MX6 Dual. 

For more information about HummingBoard, please check:
http://www.solid-run.com/products/hummingboard/

Based on the work from Jon Nettleton and Rabeeh Khoury.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
Currently only HummingBoard-i2eX is supported.

After this initial patch is accepted, then we can add the other Hummingboard
and Cubox-i variants as well.

Changes since v2:
- Avoid undef CONFIG_CMD_IMLS as suggested by Tom
- Change the name from mx6cuboxi_spl_defconfig to mx6cuboxi_defconfig as
spl will be the only supported method for these boards

Changes since v1:
- Addressed several comments made by Tom Rini
- Remove empty lines from README as pointed out by Nikolay Dimitrov
- Fixed sparse warnings
- Fixed DDR settings
 arch/arm/Kconfig                     |   6 +
 board/solidrun/mx6cuboxi/Kconfig     |  15 ++
 board/solidrun/mx6cuboxi/MAINTAINERS |   6 +
 board/solidrun/mx6cuboxi/Makefile    |   9 +
 board/solidrun/mx6cuboxi/README      |  21 +++
 board/solidrun/mx6cuboxi/mx6cuboxi.c | 330 +++++++++++++++++++++++++++++++++++
 configs/mx6cuboxi_defconfig          |   6 +
 include/configs/mx6cuboxi.h          | 205 ++++++++++++++++++++++
 8 files changed, 598 insertions(+)
 create mode 100644 board/solidrun/mx6cuboxi/Kconfig
 create mode 100644 board/solidrun/mx6cuboxi/MAINTAINERS
 create mode 100644 board/solidrun/mx6cuboxi/Makefile
 create mode 100644 board/solidrun/mx6cuboxi/README
 create mode 100644 board/solidrun/mx6cuboxi/mx6cuboxi.c
 create mode 100644 configs/mx6cuboxi_defconfig
 create mode 100644 include/configs/mx6cuboxi.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 7ed0e20..7c383cb 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -523,6 +523,11 @@ config TARGET_MX6SABRESD
 	select CPU_V7
 	select SUPPORT_SPL
 
+config TARGET_MX6CUBOXI
+	bool "Support Solid-run mx6 boards"
+	select CPU_V7
+	select SUPPORT_SPL
+
 config TARGET_MX6SLEVK
 	bool "Support mx6slevk"
 	select CPU_V7
@@ -856,6 +861,7 @@ source "board/siemens/draco/Kconfig"
 source "board/siemens/pxm2/Kconfig"
 source "board/siemens/rut/Kconfig"
 source "board/silica/pengwyn/Kconfig"
+source "board/solidrun/mx6cuboxi/Kconfig"
 source "board/solidrun/hummingboard/Kconfig"
 source "board/spear/spear300/Kconfig"
 source "board/spear/spear310/Kconfig"
diff --git a/board/solidrun/mx6cuboxi/Kconfig b/board/solidrun/mx6cuboxi/Kconfig
new file mode 100644
index 0000000..31d88b2
--- /dev/null
+++ b/board/solidrun/mx6cuboxi/Kconfig
@@ -0,0 +1,15 @@
+if TARGET_MX6CUBOXI
+
+config SYS_BOARD
+	default "mx6cuboxi"
+
+config SYS_VENDOR
+	default "solidrun"
+
+config SYS_SOC
+	default "mx6"
+
+config SYS_CONFIG_NAME
+	default "mx6cuboxi"
+
+endif
diff --git a/board/solidrun/mx6cuboxi/MAINTAINERS b/board/solidrun/mx6cuboxi/MAINTAINERS
new file mode 100644
index 0000000..3d468ed
--- /dev/null
+++ b/board/solidrun/mx6cuboxi/MAINTAINERS
@@ -0,0 +1,6 @@
+MX6CUBOXI BOARD
+M:	Fabio Estevam <fabio.estevam@freescale.com>
+S:	Maintained
+F:	board/solidrun/mx6cuboxi/
+F:	include/configs/mx6cuboxi.h
+F:	configs/mx6cuboxi_spl_defconfig
diff --git a/board/solidrun/mx6cuboxi/Makefile b/board/solidrun/mx6cuboxi/Makefile
new file mode 100644
index 0000000..df425ac
--- /dev/null
+++ b/board/solidrun/mx6cuboxi/Makefile
@@ -0,0 +1,9 @@
+#
+# Copyright (C) 2007, Guennadi Liakhovetski <lg@denx.de>
+#
+# (C) Copyright 2011 Freescale Semiconductor, Inc.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y  := mx6cuboxi.o
diff --git a/board/solidrun/mx6cuboxi/README b/board/solidrun/mx6cuboxi/README
new file mode 100644
index 0000000..3050c48
--- /dev/null
+++ b/board/solidrun/mx6cuboxi/README
@@ -0,0 +1,21 @@
+How to use U-boot on Solid-run mx6 hummingboard
+-----------------------------------------------
+
+- Build U-boot for hummingboard:
+
+$ make mrproper
+$ make mx6cuboxi_defconfig
+$ make
+
+This will generate the SPL image called SPL and the u-boot.img.
+
+- Flash the SPL image into the SD card:
+
+sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync
+
+- Flash the u-boot.img image into the SD card:
+
+sudo dd if=u-boot.img of=/dev/mmcblk0 bs=1k seek=69; sync
+
+- Insert the SD card in the hummingboard, power it up and U-boot messages
+should come up.
diff --git a/board/solidrun/mx6cuboxi/mx6cuboxi.c b/board/solidrun/mx6cuboxi/mx6cuboxi.c
new file mode 100644
index 0000000..b696dcb
--- /dev/null
+++ b/board/solidrun/mx6cuboxi/mx6cuboxi.c
@@ -0,0 +1,330 @@
+/*
+ * Copyright (C) 2015 Freescale Semiconductor, Inc.
+ *
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ *
+ * Copyright (C) 2013 Jon Nettleton <jon.nettleton@gmail.com>
+ *
+ * Based on SPL code from Solidrun tree, which is:
+ * Author: Tungyi Lin <tungyilin1127@gmail.com>
+ *
+ * Derived from EDM_CF_IMX6 code by TechNexion,Inc
+ * Ported to SolidRun microSOM by Rabeeh Khoury <rabeeh@solid-run.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/iomux.h>
+#include <asm/arch/mx6-pins.h>
+#include <asm/errno.h>
+#include <asm/gpio.h>
+#include <asm/imx-common/iomux-v3.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <miiphy.h>
+#include <netdev.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/mx6-ddr.h>
+#include <spl.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
+	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm |			\
+	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP |			\
+	PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |			\
+	PAD_CTL_SRE_FAST  | PAD_CTL_HYS)
+
+#define ENET_PAD_CTRL  (PAD_CTL_PUS_100K_UP |			\
+	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
+#define ENET_PAD_CTRL_PD  (PAD_CTL_PUS_100K_DOWN |		\
+	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+
+#define ENET_PAD_CTRL_CLK  ((PAD_CTL_PUS_100K_UP & ~PAD_CTL_PKE) | \
+	PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
+
+#define ETH_PHY_RESET	IMX_GPIO_NR(4, 15)
+
+int dram_init(void)
+{
+	gd->ram_size = imx_ddr_size();
+	return 0;
+}
+
+static iomux_v3_cfg_t const uart1_pads[] = {
+	MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+	MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const usdhc2_pads[] = {
+	MX6_PAD_SD2_CLK__SD2_CLK	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_CMD__SD2_CMD	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT0__SD2_DATA0	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT1__SD2_DATA1	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT2__SD2_DATA2	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+	MX6_PAD_SD2_DAT3__SD2_DATA3	| MUX_PAD_CTRL(USDHC_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+}
+
+static struct fsl_esdhc_cfg usdhc_cfg[1] = {
+	{USDHC2_BASE_ADDR},
+};
+
+int board_mmc_getcd(struct mmc *mmc)
+{
+	return 1; /* uSDHC2 is always present */
+}
+
+int board_mmc_init(bd_t *bis)
+{
+	imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads));
+	usdhc_cfg[0].esdhc_base = USDHC2_BASE_ADDR;
+	usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
+	gd->arch.sdhc_clk = usdhc_cfg[0].sdhc_clk;
+
+	return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
+}
+
+static iomux_v3_cfg_t const enet_pads[] = {
+	MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	/* AR8035 reset */
+	MX6_PAD_KEY_ROW4__GPIO4_IO15 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
+	/* AR8035 interrupt */
+	MX6_PAD_DI0_PIN2__GPIO4_IO18 | MUX_PAD_CTRL(NO_PAD_CTRL),
+	/* GPIO16 -> AR8035 25MHz */
+	MX6_PAD_GPIO_16__ENET_REF_CLK	  | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_RGMII_TXC__RGMII_TXC	  | MUX_PAD_CTRL(NO_PAD_CTRL),
+	MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	/* AR8035 CLK_25M --> ENET_REF_CLK (V22) */
+	MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL_CLK),
+	MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
+	MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
+	MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
+	MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL_PD),
+};
+
+static void setup_iomux_enet(void)
+{
+	imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
+
+	gpio_direction_output(ETH_PHY_RESET, 0);
+	mdelay(2);
+	gpio_set_value(ETH_PHY_RESET, 1);
+}
+
+int board_phy_config(struct phy_device *phydev)
+{
+	if (phydev->drv->config)
+		phydev->drv->config(phydev);
+
+	return 0;
+}
+
+int board_eth_init(bd_t *bis)
+{
+	struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR;
+
+	int ret = enable_fec_anatop_clock(ENET_25MHZ);
+	if (ret)
+		return ret;
+
+	/* set gpr1[ENET_CLK_SEL] */
+	setbits_le32(&iomuxc_regs->gpr[1], IOMUXC_GPR1_ENET_CLK_SEL_MASK);
+
+	setup_iomux_enet();
+
+	return cpu_eth_init(bis);
+}
+
+int board_early_init_f(void)
+{
+	setup_iomux_uart();
+	return 0;
+}
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
+
+	return 0;
+}
+
+int checkboard(void)
+{
+	puts("Board: MX6 Hummingboard\n");
+	return 0;
+}
+
+#ifdef CONFIG_SPL_BUILD
+static const struct mx6dq_iomux_ddr_regs mx6_ddr_ioregs = {
+	.dram_sdclk_0 =  0x00020030,
+	.dram_sdclk_1 =  0x00020030,
+	.dram_cas =  0x00020030,
+	.dram_ras =  0x00020030,
+	.dram_reset =  0x00020030,
+	.dram_sdcke0 =  0x00003000,
+	.dram_sdcke1 =  0x00003000,
+	.dram_sdba2 =  0x00000000,
+	.dram_sdodt0 =  0x00003030,
+	.dram_sdodt1 =  0x00003030,
+	.dram_sdqs0 =  0x00000030,
+	.dram_sdqs1 =  0x00000030,
+	.dram_sdqs2 =  0x00000030,
+	.dram_sdqs3 =  0x00000030,
+	.dram_sdqs4 =  0x00000030,
+	.dram_sdqs5 =  0x00000030,
+	.dram_sdqs6 =  0x00000030,
+	.dram_sdqs7 =  0x00000030,
+	.dram_dqm0 =  0x00020030,
+	.dram_dqm1 =  0x00020030,
+	.dram_dqm2 =  0x00020030,
+	.dram_dqm3 =  0x00020030,
+	.dram_dqm4 =  0x00020030,
+	.dram_dqm5 =  0x00020030,
+	.dram_dqm6 =  0x00020030,
+	.dram_dqm7 =  0x00020030,
+};
+
+static const struct mx6dq_iomux_grp_regs mx6_grp_ioregs = {
+	.grp_ddr_type =  0x000C0000,
+	.grp_ddrmode_ctl =  0x00020000,
+	.grp_ddrpke =  0x00000000,
+	.grp_addds =  0x00000030,
+	.grp_ctlds =  0x00000030,
+	.grp_ddrmode =  0x00020000,
+	.grp_b0ds =  0x00000030,
+	.grp_b1ds =  0x00000030,
+	.grp_b2ds =  0x00000030,
+	.grp_b3ds =  0x00000030,
+	.grp_b4ds =  0x00000030,
+	.grp_b5ds =  0x00000030,
+	.grp_b6ds =  0x00000030,
+	.grp_b7ds =  0x00000030,
+};
+
+static const struct mx6_mmdc_calibration mx6_mmcd_calib = {
+	.p0_mpwldectrl0 =  0x00000000,
+	.p0_mpwldectrl1 =  0x00000000,
+	.p1_mpwldectrl0 =  0x00000000,
+	.p1_mpwldectrl1 =  0x00000000,
+	.p0_mpdgctrl0 =    0x0314031c,
+	.p0_mpdgctrl1 =    0x023e0304,
+	.p1_mpdgctrl0 =    0x03240330,
+	.p1_mpdgctrl1 =    0x03180260,
+	.p0_mprddlctl =    0x3630323c,
+	.p1_mprddlctl =    0x3436283a,
+	.p0_mpwrdlctl =    0x36344038,
+	.p1_mpwrdlctl =    0x422a423c,
+};
+
+static struct mx6_ddr3_cfg mem_ddr = {
+	.mem_speed = 1600,
+	.density   = 2,
+	.width     = 16,
+	.banks     = 8,
+	.rowaddr   = 14,
+	.coladdr   = 10,
+	.pagesz    = 2,
+	.trcd      = 1375,
+	.trcmin    = 4875,
+	.trasmin   = 3500,
+	.SRT       = 1,
+};
+
+static void ccgr_init(void)
+{
+	struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
+
+	writel(0x00C03F3F, &ccm->CCGR0);
+	writel(0x0030FC03, &ccm->CCGR1);
+	writel(0x0FFFC000, &ccm->CCGR2);
+	writel(0x3FF00000, &ccm->CCGR3);
+	writel(0x00FFF300, &ccm->CCGR4);
+	writel(0x0F0000C3, &ccm->CCGR5);
+	writel(0x000003FF, &ccm->CCGR6);
+}
+
+static void gpr_init(void)
+{
+	struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
+
+	/* enable AXI cache for VDOA/VPU/IPU */
+	writel(0xF00000CF, &iomux->gpr[4]);
+	/* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
+	writel(0x007F007F, &iomux->gpr[6]);
+	writel(0x007F007F, &iomux->gpr[7]);
+}
+
+/*
+ * This section requires the differentiation between Solidrun mx6 boards, but
+ * for now, it will configure only for the mx6dual hummingboard version.
+ */
+static void spl_dram_init(void)
+{
+	struct mx6_ddr_sysinfo sysinfo = {
+		/* width of data bus: 0=16, 1=32, 2=64 */
+		.dsize = 2,
+		/* config for full 4GB range so that get_mem_size() works */
+		.cs_density = 32,	/* 32Gb per CS */
+		.ncs = 1,		/* single chip select */
+		.cs1_mirror = 0,
+		.rtt_wr = 1 /*DDR3_RTT_60_OHM*/,	/* RTT_Wr = RZQ/4 */
+		.rtt_nom = 1 /*DDR3_RTT_60_OHM*/,	/* RTT_Nom = RZQ/4 */
+		.walat = 1,	/* Write additional latency */
+		.ralat = 5,	/* Read additional latency */
+		.mif3_mode = 3,	/* Command prediction working mode */
+		.bi_on = 1,	/* Bank interleaving enabled */
+		.sde_to_rst = 0x10,	/* 14 cycles, 200us (JEDEC default) */
+		.rst_to_cke = 0x23,	/* 33 cycles, 500us (JEDEC default) */
+	};
+
+	mx6dq_dram_iocfg(64, &mx6_ddr_ioregs, &mx6_grp_ioregs);
+	mx6_dram_cfg(&sysinfo, &mx6_mmcd_calib, &mem_ddr);
+}
+
+void board_init_f(ulong dummy)
+{
+	/* setup AIPS and disable watchdog */
+	arch_cpu_init();
+
+	ccgr_init();
+	gpr_init();
+
+	/* iomux and setup of i2c */
+	board_early_init_f();
+
+	/* setup GP timer */
+	timer_init();
+
+	/* UART clocks enabled and gd valid - init serial console */
+	preloader_console_init();
+
+	/* DDR initialization */
+	spl_dram_init();
+
+	/* Clear the BSS. */
+	memset(__bss_start, 0, __bss_end - __bss_start);
+
+	/* load/boot image from boot device */
+	board_init_r(NULL, 0);
+}
+#endif
diff --git a/configs/mx6cuboxi_defconfig b/configs/mx6cuboxi_defconfig
new file mode 100644
index 0000000..85dc58a
--- /dev/null
+++ b/configs/mx6cuboxi_defconfig
@@ -0,0 +1,6 @@
+CONFIG_SPL=y
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,MX6Q"
+CONFIG_ARM=y
+CONFIG_TARGET_MX6CUBOXI=y
+CONFIG_DM=y
+CONFIG_DM_THERMAL=y
diff --git a/include/configs/mx6cuboxi.h b/include/configs/mx6cuboxi.h
new file mode 100644
index 0000000..5d58b16
--- /dev/null
+++ b/include/configs/mx6cuboxi.h
@@ -0,0 +1,205 @@
+/*
+ * Copyright (C) 2015 Freescale Semiconductor, Inc.
+ *
+ * Configuration settings for the SolidRun mx6 based boards
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#ifndef __MX6CUBOXI_CONFIG_H
+#define __MX6CUBOXI_CONFIG_H
+
+#include <linux/sizes.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/imx-common/gpio.h>
+#include "mx6_common.h"
+
+#define CONFIG_MX6
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_MMC_SUPPORT
+#include "imx6_spl.h"
+
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DISPLAY_BOARDINFO
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+#define CONFIG_REVISION_TAG
+#define CONFIG_IMX6_THERMAL
+#define CONFIG_SYS_GENERIC_BOARD
+
+#define CONFIG_SYS_MALLOC_LEN		(2 * SZ_1M)
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_MXC_GPIO
+#define CONFIG_MXC_UART
+#define CONFIG_CMD_FUSE
+#define CONFIG_MXC_OCOTP
+
+/* MMC Configs */
+#define CONFIG_FSL_ESDHC
+#define CONFIG_FSL_USDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR	USDHC2_BASE_ADDR
+#define CONFIG_MMC
+#define CONFIG_CMD_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_BOUNCE_BUFFER
+#define CONFIG_CMD_EXT4
+#define CONFIG_CMD_EXT4_WRITE
+#define CONFIG_CMD_FAT
+#define CONFIG_DOS_PARTITION
+
+/* Ethernet Configuration */
+#define CONFIG_FEC_MXC
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_NET
+#define CONFIG_MII
+#define IMX_FEC_BASE			ENET_BASE_ADDR
+#define CONFIG_FEC_XCV_TYPE		RGMII
+#define CONFIG_FEC_MXC_PHYADDR		0
+#define CONFIG_PHYLIB
+#define CONFIG_PHY_ATHEROS
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+#define CONFIG_CONS_INDEX		1
+#define CONFIG_BAUDRATE			115200
+
+#define CONFIG_SYS_NO_FLASH
+
+/* Command definition */
+#include <config_cmd_default.h>
+
+#define CONFIG_CMD_BOOTZ
+#define CONFIG_CMD_SETEXPR
+
+#define CONFIG_BOOTDELAY		1
+
+#define CONFIG_LOADADDR			0x12000000
+#define CONFIG_SYS_TEXT_BASE		0x17800000
+
+#define CONFIG_MXC_UART_BASE	UART1_BASE
+#define CONFIG_CONSOLE_DEV	"ttymxc0"
+#define CONFIG_MMCROOT		"/dev/mmcblk0p2"
+#define CONFIG_DEFAULT_FDT_FILE	"imx6q-hummingboard.dtb"
+#define CONFIG_SYS_FSL_USDHC_NUM	1
+#define CONFIG_SYS_MMC_ENV_DEV		0	/* SDHC2 */
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"script=boot.scr\0" \
+	"image=zImage\0" \
+	"fdt_file=" CONFIG_DEFAULT_FDT_FILE "\0" \
+	"fdt_addr=0x18000000\0" \
+	"boot_fdt=try\0" \
+	"ip_dyn=yes\0" \
+	"console=" CONFIG_CONSOLE_DEV "\0" \
+	"bootm_size=0x10000000\0" \
+	"mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
+	"mmcpart=1\0" \
+	"mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \
+	"update_sd_firmware=" \
+		"if test ${ip_dyn} = yes; then " \
+			"setenv get_cmd dhcp; " \
+		"else " \
+			"setenv get_cmd tftp; " \
+		"fi; " \
+		"if mmc dev ${mmcdev}; then "	\
+			"if ${get_cmd} ${update_sd_firmware_filename}; then " \
+				"setexpr fw_sz ${filesize} / 0x200; " \
+				"setexpr fw_sz ${fw_sz} + 1; "	\
+				"mmc write ${loadaddr} 0x2 ${fw_sz}; " \
+			"fi; "	\
+		"fi\0" \
+	"mmcargs=setenv bootargs console=${console},${baudrate} " \
+		"root=${mmcroot}\0" \
+	"loadbootscript=" \
+		"fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
+	"bootscript=echo Running bootscript from mmc ...; " \
+		"source\0" \
+	"loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
+	"loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
+	"mmcboot=echo Booting from mmc ...; " \
+		"run mmcargs; " \
+		"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
+			"if run loadfdt; then " \
+				"bootz ${loadaddr} - ${fdt_addr}; " \
+			"else " \
+				"if test ${boot_fdt} = try; then " \
+					"bootz; " \
+				"else " \
+					"echo WARN: Cannot load the DT; " \
+				"fi; " \
+			"fi; " \
+		"else " \
+			"bootz; " \
+		"fi;\0" \
+	"netargs=setenv bootargs console=${console},${baudrate} " \
+		"root=/dev/nfs " \
+		"ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
+	"netboot=echo Booting from net ...; " \
+		"run netargs; " \
+		"if test ${ip_dyn} = yes; then " \
+			"setenv get_cmd dhcp; " \
+		"else " \
+			"setenv get_cmd tftp; " \
+		"fi; " \
+		"${get_cmd} ${image}; " \
+		"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
+			"if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \
+				"bootz ${loadaddr} - ${fdt_addr}; " \
+			"else " \
+				"if test ${boot_fdt} = try; then " \
+					"bootz; " \
+				"else " \
+					"echo WARN: Cannot load the DT; " \
+				"fi; " \
+			"fi; " \
+		"else " \
+			"bootz; " \
+		"fi;\0"
+
+#define CONFIG_BOOTCOMMAND \
+	"mmc dev ${mmcdev};" \
+	"if mmc rescan; then " \
+		"if run loadbootscript; then " \
+		"run bootscript; " \
+		"else " \
+			"if run loadimage; then " \
+				"run mmcboot; " \
+			"else run netboot; " \
+			"fi; " \
+		"fi; " \
+	"else run netboot; fi"
+
+/* Miscellaneous configurable options */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_CBSIZE              256
+#define CONFIG_SYS_MAXARGS             16
+#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
+
+#define CONFIG_SYS_LOAD_ADDR           CONFIG_LOADADDR
+
+#define CONFIG_CMDLINE_EDITING
+
+/* Physical Memory Map */
+#define CONFIG_NR_DRAM_BANKS           1
+#define CONFIG_SYS_SDRAM_BASE          MMDC0_ARB_BASE_ADDR
+#define CONFIG_SYS_INIT_RAM_ADDR       IRAM_BASE_ADDR
+#define CONFIG_SYS_INIT_RAM_SIZE       IRAM_SIZE
+
+#define CONFIG_SYS_INIT_SP_OFFSET \
+	(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR \
+	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+
+/* Environment organization */
+#define CONFIG_ENV_SIZE			(8 * 1024)
+#define CONFIG_ENV_IS_IN_MMC
+#define CONFIG_ENV_OFFSET		(8 * 64 * 1024)
+
+#define CONFIG_OF_LIBFDT
+#define CONFIG_CMD_CACHE
+
+#endif                         /* __MX6CUBOXI_CONFIG_H */
-- 
1.9.1